124321312 has 12 divisors (see below), whose sum is σ = 244757646. Its totient is φ = 62160640.

The previous prime is 124321303. The next prime is 124321321. The reversal of 124321312 is 213123421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (124321303) and next prime (124321321).

It can be written as a sum of positive squares in only one way, i.e., 99281296 + 25040016 = 9964^2 + 5004^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 124321312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1942489 + ... + 1942552.

Almost surely, 2^124321312 is an apocalyptic number.

It is an amenable number.

124321312 is a deficient number, since it is larger than the sum of its proper divisors (120436334).

124321312 is an equidigital number, since it uses as much as digits as its factorization.

124321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885051 (or 3885043 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 124321312 is about 11149.9467263301. The cubic root of 124321312 is about 499.0934399579.

Adding to 124321312 its reverse (213123421), we get a palindrome (337444733).

It can be divided in two parts, 1243213 and 12, that added together give a square (1243225 = 1115²).

The spelling of 124321312 in words is "one hundred twenty-four million, three hundred twenty-one thousand, three hundred twelve".